Collapsing test view

[matt-vrtula]

When my test visits more than one url (same domain), the view in test runner window suddenly changes size. You can see the result in the attached image:

I was able to make a small reproducible example, which leads to this behaviour:

    it('experiment', () => {
        const baseUrl = 'https://www.kimbino.sk/'
        cy.viewport('iphone-x')
        cy.visit(baseUrl)
        cy.visit(baseUrl + 'elektronika/')
    })

Sometimes this test passes and everything is fine. You have to run it several times.

The test alone doesn´t fail and runs just fine. But when I want to run another test that uses a different viewport, it fails, because the viewport doesn´t get set properly.

When I comment out error catching:

Cypress.on('uncaught:exception', (err, runnable) => {
    return false;
})

this error shows up in console after the view collapses:

Any ideas on how to solve this?